Hydrocarbon-burner.



1. A. JOHNSON.

HYDROCARBON BURNER.

APPLICATION FILED MAR.26.1918- 1394,2768 Patented Feb.11,1919.

UNITED @TATES PATENT @FFTQE.

JOHN A. JOHNSON, OF CHICAGO, ILLINOIS, ASSIGNOR TO ANDERSON ELECTRIC SPECIALTY COMPANY, OF CEIICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

HYDROGABBON-BURNER.

Specification of Letters E'atent.

Patented Feb. 11, 1919.

Application filed March 26, 1918. Serial No. 224,708.

To all whom it may concern Be it known that 1, JOHN A. JOHNSON, a citizen of the United States, and a resident of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Hydrocarbon-Burners; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the characters of reference marked thereon. which form a part of this specification.

This invention relates to a novel burner for burning a mixture of hydrocarbon, such as gasolene, and air, and the invention relates more particularly to the construction and arrangement of the means admitting the liquid hydrocarbon to the burner and for vaporizing the hydrocarbon preparatory to its admission to the burner where it is mixed with air for combustion.

The purpose of the invention is to provide a vaporizing device of this character. the hydrocarbon passage of which does not readily become clogged, and which is so con structed and arranged as to enable said passage to be cleaned without disassembling the device.

In the present application the burner is shown as applied to a pressure tank in which a suitable pressure is maintained, as by means of a hand pump, to force the hydrocarbon to the burner, the device to be used as a. torch for locally applying heat. It will be understood, however, that the example of this one embodiment of the invention is merely illustrative, and is not intended to be limiting or restrictive, but that the invention is capable of wide and general uses where the principles of vaporizing the hydrocarbon and employing a mixture of the vapor and air for heating or lighting purposes may be employed.

As shown in the drawings,

Figure 1 is a view partially in elevation and partially in section of a device equipped with a burner embodying the invention.

Fig. 2 is an enlarged section on the line 2-2 of Fig. 1.

Fig. 3 is a fragmentary section on the line 33 of Fig. 1.

Fig. 4c is an enlarged section on the line e-a of Fig. 2.

As shown in the drawings, 10 designates a receptacle for containing the liquid hydrocarbon, and from which the hydrocarbon is furnished to the burner. Suitable pressure may be maintained in said receptacle by any convenient form of pump designated as a whole by 11. 12 designates a burner head herein shown as of the general Bunsen type. It is connected to the receptacle through the medium of a vaporizing passage that is formed by means made as follows:

14- designates a valve casing located at one end of the burner tube 12 equipped with a small conical port 15 formed in a plug 16 that is shown as threaded to the valve casing 14. with the port in communication with the valve chamber 17. Extending into and through the valve chamber is a stem 18 that is formed with a needle point 18 to coact with the port 15, said stem being threaded in the valve casing to be thereby moved endwise toward and from the needle valve port.

20 designates a tube that is threaded at one end to enter an opening in the valve casing, which opening communicates with the valve chamber through a small port 21. 22 designates a solid rod or core within said tube or shell 20. The said core fits in said tube in a manner to provide between it and the tube wall a passage 23 for hydrocarbon. As shown, said passage may be formed by fiat toning or otherwise cutting away the core lengthwise thereof. The core terminates adiacent to the valve casing and the burner, but short of the tube. 2 designates a fitting that is exteriorly threaded at one end to engage threads in an opening in the receptacle wall. It is enlarged at its outer end to receive both the tube 20 and the core 22, the core extending inwardly beyond the tube in said fitting, The extended end of the core fits closely in reduced bearing designated at 25 within the fitting. A packing 26 is interposed between the inner end of the tube and the interior shoulder of the fitting, the packing encircling the core. The tube and core are deta'chably connected to the fitting by a coupling collar 27 which loosely fits over the tube and engages an enlargement or shoulder 28 thereon and is internally threaded to engage an external thread on the enlarged end of the coupling 24.

The inner end of the core or rod 22 is formed with an axial passage 29 which communicates with the interior of the fitting 24: through a port 30 in an internal diaphragm of said fitting. The said passage 29 ter minutes in a radial port 31 that opens into the passage 23 formed, as shown in the pres ent instance, by longitudinally flattening or cutting away of the rod An L shaped pipe 32 dips into the contents of the receptacle 10 to a point near its bottom and is externally threaded to engage internal screw threads in the smaller end of the fitting 25 to convey the liquid hydrocarbon to the fitting and thence through the passage 29 and port 31 to the passage 23.

lnthe use of the device, it will be observed that the pressure Within the receptacle 10' or equivalent pressure forces the liquid hydrocarbon through the various passages and ports mentioned, and'that, inasmuch as the tube 20 and core or rod are heated by reason orthe adjacency of. their outer ends to the burner, the temperature of the thin film 01" liquid hydrocarbon in transit through the passage23 is raised so that when, delivered to the valve chamber 17 it is vaporized for ready admixture with the air at the exit of the port and Within the perforated burner tube 12. By reason of the fact that the burner head 1% is supportedon the outer end of the tube and the bar or core is supported at its inner end on the fitting 24, the said tube 20 is capable of turning on the core by grasping the burner head and turning it, first to the right and then to the leit, such turning movement of the tube relatively to the core has the eiiect to dislodge any solid hydrocarbon that may have collected in the hydrocarbon passage between the tube and core and to allow such accumulated carbon to be forced outwardly to the burner by the pressure from the tank. "When it is desired to further clean the core, such core may be readily'exposed by unscrewing the coupling collar 27 and pulling the tube or sleeve 20 endwise therefrom;

sleeve threaded to saidv fitting to I claim as my invention:

1. A hydrocarbon burner comprising a burnerhead, a tube on one end of, which the burner head is 1nounted,a core extending loosely through the tube and P ojecting at one end beyond the tube and formed to provide between it and the tube a passage leading to the burner head, a fitting adapted-for connection to a source of liquid hydrocarbon, in which one-end of said core isseated, and means to couple said tube to said, fitting, constructed to permit the tube to rotate on said core.

.2. The combination with a burner head, a

tube on the outer end of which said burner head is supported, a core in said tube havinga longitudinal flattened portion to provide a fuel passage betWeenthe core and tube, said core extending at its innerend beyond said tube, a fuel feedfitting in which the extended end of the core is seated and by which it is supported, and a coupling between said fitting and said tube constructed to perinit the tube to turn relatively tosaid fitting and core. V

The combination with a burner head, a tube on the outer end of which said burner lie-ad is supported, a core inlsaid tube having a longitudinal flattened portion to pro- Vl(l a fuel passage between the core and tube, said core extending at its inner end beyond said tube, a fuelffeed fitting in which the extended end 01 the core isseated and by which it is supported, and a coupling lock said tube rotatively to said fitting. i i

in testimony whereof I claim the foregoing; my invention, I hereunto append iny signature at Chicago, Illinois, this 21stday of March, 1918.

JOHN JOHNSON.

Gopies of this patent may be obtained for five cents each, by addressing the ffiom nissioner of Patents, Washington, 11th. 

